Garden plant growth regulator composition as well as preparation method and application thereof

Abstract

The invention discloses a garden plant growth regulator composition as well as a preparation method and application thereof, and belongs to the technical field of plant growth regulators. The garden plant growth regulator composition is prepared from a dianthus chinensis extract, naphthoxyacetic acid, 4-bromophenoxyacetic acid, S-abscisic acid and titanium citrate. The dianthus chinensis extract introduced by the invention is compounded with naphthoxyacetic acid, 4-bromophenoxyacetic acid, S-abscisic acid and titanium citrate in a specific proportion, so that the growth of root systems of garden plants can be promoted, the survival rate of the transplanted garden plants is increased, and meanwhile, the growth of the garden plants is promoted. The garden plant growth regulator composition can improve the survival rate of transplanted garden plants, greatly reduces the waste of manpower, material resources and financial resources, meets the requirements of urban construction, improves the coverage rate of urban greening, and is worthy of popularization.

Description

Technical Field

[0001] The invention belongs to the technical field of plant growth regulators, and in particular relates to a garden plant growth regulator composition and a preparation method and application thereof. Background Art

[0002] There are many kinds of plants in urban gardens, which can absorb dust, pollutants and CO2, purify the air, block noise, etc., and greatly improve the urban ecological environment. With the rapid development of urban gardening, garden landscape has become an important part of people's life and work. With the continuous improvement of aesthetics, people's requirements for urban garden landscape are getting higher and higher. In order to maintain the beauty of garden landscape, the garden department has to invest a lot of manpower, material resources and financial resources for maintenance and management. Plant growth regulators are widely used in agricultural production, which can reduce input and improve efficiency, but their use in garden plants is still in its infancy. Different plants react differently to different plant growth regulators, and the same plant has different sensitivities to the same plant growth regulator at different developmental stages. Therefore, when selecting plant growth regulators, it is necessary to select appropriate types, dosages, and concentrations of plant growth regulators according to plant species and developmental stages, and use them through appropriate methods to achieve the desired effect. At present, when transplanting garden plants, the low survival rate of transplanted plants will invisibly waste a lot of manpower, material resources, financial resources and time.

[0003] Therefore, there is an urgent need to develop a garden plant growth regulator composition to improve the survival rate of plants after transplanting, which can not only meet the needs of urban development and construction, but also increase the green coverage rate of the city. Summary of the invention

[0004] The invention provides a garden plant growth regulator composition, a preparation method and an application thereof. The garden plant growth regulator composition of the invention can promote plant rooting, improve the survival rate of garden plants after transplantation and promote the growth of garden plants.

[0005] In order to achieve the above technical objectives, the technical solution adopted by the present invention is: A garden plant growth regulator composition comprises the following raw materials: dianthus extract, naphthoxyacetic acid, 4-bromophenoxyacetic acid, S-inducible hormone and titanium citrate.

[0006] Furthermore, the concentration of the dianthus extract is 500-1000 mg / L; the concentration of naphthoxyacetic acid is 8-15 mg / L; the concentration of 4-bromophenoxyacetic acid is 5-10 mg / L; the concentration of S-inducible factor is 0.5-07 mg / L; and the concentration of titanium citrate is 0.5-07 mg / L.

[0007] Furthermore, the dianthus extract is from the stems and leaves of dianthus.

[0008] Furthermore, the dianthus extract is prepared by the following steps: (1) Pretreatment: First, the stems and leaves of the dianthus need to be cleaned and cut; (2) Grinding: Grind the cleaned carnation stems and leaves with liquid nitrogen and crush them into small pieces using a grinding rod; (3) Extraction: Place the ground carnation material into an extraction container and add the extraction solvent ethanol to soak for 1 hour; (4) Centrifugation: After soaking, the plant residue is separated by centrifugation to obtain the carnation extract; (5) Concentration: The obtained dianthus extract is concentrated and dried to obtain the dianthus extract. A method for preparing a garden plant growth regulator composition, comprising the following steps: (1) Weigh naphthoxyacetic acid and 4-bromophenoxyacetic acid according to the required concentration, dissolve them completely in ethanol, and then add water to obtain a mixed solution A; (2) Weigh the dianthus extract, S-antibiotic and titanium citrate according to the required concentrations, add them to the mixed solution A in sequence, and add water to make up the volume to obtain a garden plant growth regulator composition.

[0009] The invention discloses an application of a garden plant growth regulator composition in improving the survival rate of garden plant cultivation and transplantation.

[0010] Furthermore, the garden plants include boxwood, photinia, cypress, white magnolia and ginkgo.

[0011] Furthermore, after the garden plants are transplanted, 1 L of the garden plant growth regulator composition is applied per square meter.

[0012] Furthermore, the regulator of the present invention is administered after transplantation for a total of 2 times with an interval of 20 days.

[0013] All raw materials of the present invention are commercially available.

[0014] The flavonoids, polysaccharides and other ingredients contained in dianthus extract have significant antioxidant capacity, which helps to reduce the oxidative stress of plants under transplantation, thereby promoting the normal growth and development of plants; on the other hand, dianthus extract has antibacterial activity, which can inhibit the growth of plant pathogens and protect plants from diseases when their roots are broken, thus promoting the healthy growth of plants. By improving the physiological state of the plant root system, more new roots can be grown, the root system can be expanded, and the absorption and utilization of nutrients can be increased, thereby promoting the growth and development of plants.

[0015] S-inducing factor is a key factor in balancing the metabolism of endogenous hormones and growth-active substances in plants. It has the ability to promote the balanced absorption of water and fertilizer by plants and coordinate metabolism in the body. It can effectively regulate the growth of plant roots / crowns, and can also promote the balanced absorption of water and fertilizer by plants and coordinate metabolism in the body.

[0016] Titanium citrate can significantly increase the chlorophyll in plants, photosynthesis, and the activity of various enzymes, especially nitrogenase. In addition, titanium citrate can also promote the growth of plant roots. It can accelerate the development of the root system and enhance the absorption capacity of macroelements and trace elements in the soil. The synergistic effect of S-inducing factor and titanium citrate promotes the balanced absorption of water and fertilizer by plants, better utilizes nutrients in the soil, promotes the growth of plant roots, and thus promotes the overall growth of plants.

[0017] Beneficial Effects The invention uses dianthus extract as an active ingredient, and further adds naphthoxyacetic acid, 4-bromophenoxyacetic acid, S-inducible factor and titanium citrate. All the ingredients are reasonably compounded in a specific ratio to promote the root growth of garden plants, improve the survival rate of garden plant transplanting, and promote the growth of garden plants.

[0018] In addition, improving the survival rate of garden plants after transplanting will greatly reduce the waste of manpower, material and financial resources, while meeting the needs of urban construction and increasing the urban greening coverage rate. DETAILED DESCRIPTION

[0019] The technical solution of the present invention is further described below in conjunction with specific embodiments, but is not limited thereto.

[0020] Example 1 A garden plant growth regulator composition comprises the following raw materials: dianthus extract, naphthoxyacetic acid, 4-bromophenoxyacetic acid, S-inducible hormone and titanium citrate.

[0021] The concentration of dianthus extract is 500 mg / L; the concentration of naphthoxyacetic acid is 8 mg / L; the concentration of 4-bromophenoxyacetic acid is 5 mg / L; the concentration of S-inducible factor is 0.5 mg / L; and the concentration of titanium citrate is 0.5 mg / L.

[0022] Dianthus extract comes from the stems and leaves of the Dianthus plant.

[0023] The dianthus extract is prepared by the following steps: (1) Pretreatment: First, the stems and leaves of the dianthus need to be cleaned and cut; (2) Grinding: Grind the cleaned carnation stems and leaves with liquid nitrogen and crush them into small pieces using a grinding rod; (3) Extraction: Place the ground carnation material into an extraction container and add the extraction solvent ethanol to soak for 1 hour; (4) Centrifugation: After soaking, the plant residue is separated by centrifugation to obtain the carnation extract; (5) Concentration: The obtained dianthus extract is concentrated and dried to obtain the dianthus extract. A method for preparing a garden plant growth regulator composition, comprising the following steps: (1) Weigh naphthoxyacetic acid and 4-bromophenoxyacetic acid according to the required concentration, dissolve them completely in ethanol, and then add water to obtain a mixed solution A; (2) Weigh the dianthus extract, S-antibiotic and titanium citrate according to the required concentrations, add them to the mixed solution A in sequence, and add water to make up the volume to obtain a garden plant growth regulator composition.

[0024] Example 2 A garden plant growth regulator composition comprises the following raw materials: dianthus extract, naphthoxyacetic acid, 4-bromophenoxyacetic acid, S-inducible hormone and titanium citrate.

[0025] The concentration of dianthus extract is 700 mg / L; the concentration of naphthoxyacetic acid is 10 mg / L; the concentration of 4-bromophenoxyacetic acid is 8 mg / L; the concentration of S-inducible factor is 0.6 mg / L; and the concentration of titanium citrate is 0.6 mg / L.

[0026] Dianthus extract comes from the stems and leaves of the Dianthus plant.

[0027] The dianthus extract is prepared by the following steps: (1) Pretreatment: First, the stems and leaves of the dianthus need to be cleaned and cut; (2) Grinding: Grind the cleaned carnation stems and leaves with liquid nitrogen and crush them into small pieces using a grinding rod; (3) Extraction: Place the ground carnation material into an extraction container and add the extraction solvent ethanol to soak for 1 hour; (4) Centrifugation: After soaking, the plant residue is separated by centrifugation to obtain the carnation extract; (5) Concentration: The obtained dianthus extract is concentrated and dried to obtain the dianthus extract. A method for preparing a garden plant growth regulator composition, comprising the following steps: (1) Weigh naphthoxyacetic acid and 4-bromophenoxyacetic acid according to the required concentration, dissolve them completely in ethanol, and then add water to obtain a mixed solution A; (2) Weigh the dianthus extract, S-antibiotic and titanium citrate according to the required concentrations, add them to the mixed solution A in sequence, and add water to make up the volume to obtain a garden plant growth regulator composition.

[0028] Example 3 A garden plant growth regulator composition comprises the following raw materials: dianthus extract, naphthoxyacetic acid, 4-bromophenoxyacetic acid, S-inducible hormone and titanium citrate.

[0029] The concentration of dianthus extract is 1000 mg / L; the concentration of naphthoxyacetic acid is 15 mg / L; the concentration of 4-bromophenoxyacetic acid is 10 mg / L; the concentration of S-inducible factor is 0.7 mg / L; and the concentration of titanium citrate is 0.7 mg / L.

[0030] Dianthus extract comes from the stems and leaves of the Dianthus plant.

[0031] The dianthus extract is prepared by the following steps: (1) Pretreatment: First, the stems and leaves of the dianthus need to be cleaned and cut; (2) Grinding: Grind the cleaned carnation stems and leaves with liquid nitrogen and crush them into small pieces using a grinding rod; (3) Extraction: Place the ground carnation material into an extraction container and add the extraction solvent ethanol to soak for 1 hour; (4) Centrifugation: After soaking, the plant residue is separated by centrifugation to obtain the carnation extract; (5) Concentration: The obtained dianthus extract is concentrated and dried to obtain the dianthus extract. A method for preparing a garden plant growth regulator composition, comprising the following steps: (1) Weigh naphthoxyacetic acid and 4-bromophenoxyacetic acid according to the required concentration, dissolve them completely in ethanol, and then add water to obtain a mixed solution A; (2) Weigh the dianthus extract, S-antibiotic and titanium citrate according to the required concentrations, add them to the mixed solution A in sequence, and add water to make up the volume to obtain a garden plant growth regulator composition.

[0032] Comparative Example 1 A garden plant growth regulator composition comprises the following raw materials: dianthus extract, naphthoxyacetic acid, 4-bromophenoxyacetic acid, S-inducible hormone and titanium citrate.

[0033] The concentration of dianthus extract is 1200 mg / L; the concentration of naphthoxyacetic acid is 15 mg / L; the concentration of 4-bromophenoxyacetic acid is 10 mg / L; the concentration of S-inducible factor is 0.7 mg / L; and the concentration of titanium citrate is 0.7 mg / L.

[0034] Dianthus extract comes from the stems and leaves of the Dianthus plant.

[0035] The dianthus extract is prepared by the following steps: (1) Pretreatment: First, the stems and leaves of the dianthus need to be cleaned and cut; (2) Grinding: Grind the cleaned carnation stems and leaves with liquid nitrogen and crush them into small pieces using a grinding rod; (3) Extraction: Place the ground carnation material into an extraction container and add the extraction solvent ethanol to soak for 1 hour; (4) Centrifugation: After soaking, the plant residue is separated by centrifugation to obtain the carnation extract; (5) Concentration: The obtained dianthus extract is concentrated and dried to obtain the dianthus extract. A method for preparing a garden plant growth regulator composition, comprising the following steps: (1) Weigh naphthoxyacetic acid and 4-bromophenoxyacetic acid according to the required concentration, dissolve them completely in ethanol, and then add water to obtain a mixed solution A; (2) Weigh the dianthus extract, S-antibiotic and titanium citrate according to the required concentrations, add them to the mixed solution A in sequence, and add water to make up the volume to obtain a garden plant growth regulator composition.

[0036] In this comparative example, except for increasing the concentration of the dianthus extract, the other raw materials and preparation method are the same as those of Example 3.

[0037] Comparative Example 2 A garden plant growth regulator composition comprises the following raw materials: dianthus extract, naphthoxyacetic acid, 4-bromophenoxyacetic acid, S-inducible hormone and titanium citrate.

[0038] The concentration of dianthus extract is 300 mg / L; the concentration of naphthoxyacetic acid is 15 mg / L; the concentration of 4-bromophenoxyacetic acid is 10 mg / L; the concentration of S-inducible factor is 0.7 mg / L; and the concentration of titanium citrate is 0.7 mg / L.

[0039] Dianthus extract comes from the stems and leaves of the Dianthus plant.

[0040] The dianthus extract is prepared by the following steps: (1) Pretreatment: First, the stems and leaves of the dianthus need to be cleaned and cut; (2) Grinding: Grind the cleaned carnation stems and leaves with liquid nitrogen and crush them into small pieces using a grinding rod; (3) Extraction: Place the ground carnation material into an extraction container and add the extraction solvent ethanol to soak for 1 hour; (4) Centrifugation: After soaking, the plant residue is separated by centrifugation to obtain the carnation extract; (5) Concentration: The obtained dianthus extract is concentrated and dried to obtain the dianthus extract. A method for preparing a garden plant growth regulator composition, comprising the following steps: (1) Weigh naphthoxyacetic acid and 4-bromophenoxyacetic acid according to the required concentration, dissolve them completely in ethanol, and then add water to obtain a mixed solution A; (2) Weigh the dianthus extract, S-antibiotic and titanium citrate according to the required concentrations, add them to the mixed solution A in sequence, and add water to make up the volume to obtain a garden plant growth regulator composition.

[0041] In this comparative example, except for reducing the concentration of the dianthus extract, the other raw materials and preparation method are the same as those of Example 3.

[0042] Comparative Example 3 A garden plant growth regulator composition comprises the following raw materials: dianthus extract, naphthoxyacetic acid, 4-bromophenoxyacetic acid and titanium citrate.

[0043] The concentration of dianthus extract is 1000 mg / L; the concentration of naphthoxyacetic acid is 15 mg / L; the concentration of 4-bromophenoxyacetic acid is 10 mg / L; and the concentration of titanium citrate is 1.4 mg / L.

[0044] Dianthus extract comes from the stems and leaves of the Dianthus plant.

[0045] The dianthus extract is prepared by the following steps: (1) Pretreatment: First, the stems and leaves of the dianthus need to be cleaned and cut; (2) Grinding: Grind the cleaned carnation stems and leaves with liquid nitrogen and crush them into small pieces using a grinding rod; (3) Extraction: Place the ground carnation material into an extraction container and add the extraction solvent ethanol to soak for 1 hour; (4) Centrifugation: After soaking, the plant residue is separated by centrifugation to obtain the carnation extract; (5) Concentration: The obtained dianthus extract is concentrated and dried to obtain the dianthus extract. A method for preparing a garden plant growth regulator composition, comprising the following steps: (1) Weigh naphthoxyacetic acid and 4-bromophenoxyacetic acid according to the required concentration, dissolve them completely in ethanol, and then add water to obtain a mixed solution A; (2) Weigh the dianthus extract and titanium citrate according to the required concentrations, add them to the mixed solution A in sequence, and add water to make up the volume to obtain a garden plant growth regulator composition.

[0046] Compared with Example 3, this comparative example is the same as Example 3 except that S-aborbin is not added and the total concentration of S-aborbin and titanium citrate is controlled to be 1.4 mg / L. Other raw materials and steps are the same as Example 3.

[0047] Comparative Example 4 A garden plant growth regulator composition comprises the following raw materials: dianthus extract, naphthoxyacetic acid, 4-bromophenoxyacetic acid and S-inducible hormone.

[0048] The concentration of dianthus extract is 1000 mg / L; the concentration of naphthoxyacetic acid is 15 mg / L; the concentration of 4-bromophenoxyacetic acid is 10 mg / L; and the concentration of S-inducible is 1.4 mg / L.

[0049] Dianthus extract comes from the stems and leaves of the Dianthus plant.

[0050] The dianthus extract is prepared by the following steps: (1) Pretreatment: First, the stems and leaves of the dianthus need to be cleaned and cut; (2) Grinding: Grind the cleaned carnation stems and leaves with liquid nitrogen and crush them into small pieces using a grinding rod; (3) Extraction: Place the ground carnation material into an extraction container and add the extraction solvent ethanol to soak for 1 hour; (4) Centrifugation: After soaking, the plant residue is separated by centrifugation to obtain the carnation extract; (5) Concentration: The obtained dianthus extract is concentrated and dried to obtain the dianthus extract. A method for preparing a garden plant growth regulator composition, comprising the following steps: (1) Weigh naphthoxyacetic acid and 4-bromophenoxyacetic acid according to the required concentration, dissolve them completely in ethanol, and then add water to obtain a mixed solution A; (2) Weigh the dianthus extract and S-abortin according to the required concentrations, add them to the mixed solution A in sequence, and add water to make up the volume to obtain a garden plant growth regulator composition.

[0051] Compared with Example 3, this comparative example has the same raw materials and steps as Example 3, except that titanium citrate is not added and the total concentration of S-abortin and titanium citrate is controlled to be 1.4 mg / L.

[0052] Comparative Example 5 A garden plant growth regulator composition comprises the following raw materials: naphthoxyacetic acid, 4-bromophenoxyacetic acid, S-inducible hormone and titanium citrate.

[0053] The concentration of naphthoxyacetic acid is 15 mg / L; the concentration of 4-bromophenoxyacetic acid is 10 mg / L; the concentration of S-inducible factor is 0.7 mg / L; and the concentration of titanium citrate is 0.7 mg / L.

[0054] A method for preparing a garden plant growth regulator composition, comprising the following steps: (1) Weigh naphthoxyacetic acid and 4-bromophenoxyacetic acid according to the required concentration, dissolve them completely in ethanol, and then add water to obtain a mixed solution A; (2) S-absorbent and titanium citrate are weighed according to the required concentrations, and added to the mixed solution A in sequence, and water is added to make up the volume to obtain a garden plant growth regulator composition.

[0055] Compared with Example 3, this comparative example is the same as Example 3 except that the dianthus extract is not added, and the other raw materials and steps are the same as Example 3.

[0056] Performance Testing Test Example 1 The experiment was conducted with large-leaf boxwood transplanted in the park, with a transplanting area of ​​320 square meters. After transplanting, the garden plant growth regulator compositions prepared in Examples 1-3 and Comparative Examples 1-5 were applied respectively, and clean water was used as a control. Each group had an area of ​​40 square meters, and 1 liter was applied per square meter. It was applied twice with an interval of 20 days. Conventional management was adopted. One month after the second application of the growth regulator for garden plant cultivation and transplantation, the survival rate and new branch growth of the large-leaf boxwood were statistically analyzed. The results are shown in Table 1.

[0057] Table 1 Survival rate and new branch growth of large-leaf boxwood It can be concluded from the data in Table 1 that the use of the garden plant growth regulator composition provided by the present invention can improve the survival rate of Euonymus japonicus and promote the growth of new branches of Euonymus japonicus.

[0058] Test Example 2 The experiment was conducted with red-leafed Photinia fraseri shrubs transplanted in early spring, with a transplanting area of ​​320 square meters. After transplanting, the garden plant growth regulator compositions prepared in Examples 1 to 3 and Comparative Examples 1 to 4 were applied respectively, and clean water was used as a control. Each group had an area of ​​40 square meters, and 1 liter was applied per square meter. It was applied twice with an interval of 20 days. Conventional management was adopted. One month after the second application of the growth regulator for garden plant cultivation and transplantation, the survival rate and new branch growth of the red-leafed Photinia fraseri were statistically analyzed. The results are shown in Table 2.

[0059] Table 2 Survival rate and new branch growth of Photinia fraseri It can be concluded from the data in Table 2 that the use of the garden plant growth regulator composition provided by the present invention can improve the survival rate of Photinia fraseri and promote the growth of Photinia fraseri.

[0060] Test Example 3 The experiment was conducted with cypress transplanted in spring, with a transplanting area of ​​320 square meters. After transplanting, the garden plant growth regulator compositions prepared in Examples 1 to 3 and Comparative Examples 1 to 4 were applied respectively, and clean water was used as a control. Each group had an area of ​​40 square meters, and 1 liter was applied per square meter. It was applied twice with an interval of 20 days. Conventional management was adopted. One month after the second application of the growth regulator for garden plant cultivation and transplantation, the survival rate and the newly increased plant height of the cypress were statistically analyzed. The results are shown in Table 3.

[0061] Table 3 Survival rate and increased plant height of Cypress It can be concluded from the data in Table 3 that the use of the garden plant growth regulator composition provided by the present invention can improve the survival rate of Cypress dactylifera and promote the growth of Cypress dactylifera.

[0062] Test Example 4 The experiment was conducted with two-year-old Magnolia grandiflora, and 160 Magnolia grandiflora were transplanted. After transplantation, the garden plant growth regulator compositions prepared in Examples 1 to 3 and Comparative Examples 1 to 4 were applied respectively. In addition, clean water was used as a control. Each group had 20 trees, and 1 liter was applied per square meter. It was applied twice with an interval of 20 days. Conventional management was adopted. One year after the second application of the growth regulator for garden plant cultivation and transplantation, the survival rate and average breast diameter growth of the Magnolia grandiflora were statistically analyzed. The results are shown in Table 4.

[0063] Table 4 Survival rate and average breast diameter growth of Magnolia grandiflora It can be concluded from the data in Table 4 that the use of the garden plant growth regulator composition provided by the present invention can improve the survival rate of Magnolia grandiflora and promote the growth of Magnolia grandiflora.

[0064] Test Example 5 The experiment was conducted on ginkgo trees with a diameter at breast height of 15 cm. 160 ginkgo trees were transplanted. After transplantation, the garden plant growth regulator compositions prepared in Examples 1 to 3 and Comparative Examples 1 to 4 were applied respectively. In addition, clean water was used as a control. Each group had 20 trees, 1 liter per square meter was applied, and a total of 2 applications were made at an interval of 20 days. Conventional management was adopted. One year after the second application of the growth regulator for garden plant cultivation and transplantation, the survival rate and average diameter at breast height growth of the ginkgo trees were statistically analyzed. The results are shown in Table 5.

[0065] Table 5 Survival rate and average breast diameter growth of ginkgo trees It can be concluded from the data in Table 5 that the use of the garden plant growth regulator composition provided by the present invention can improve the survival rate of ginkgo trees and promote the growth of ginkgo trees.

[0066] It should be noted that the above embodiments are only partial embodiments of the preferred methods of implementing the present invention, rather than all embodiments. Obviously, based on the above embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

Claims

1. A garden plant growth regulator composition, characterized in that: The invention comprises the following raw materials: dianthus extract, naphthoxyacetic acid, 4-bromophenoxyacetic acid, S-inducible factor and titanium citrate.

2. The garden plant growth regulator composition according to claim 1, characterized in that: The concentration of the dianthus extract is 500-1000 mg / L; the concentration of naphthoxyacetic acid is 8-15 mg / L; the concentration of 4-bromophenoxyacetic acid is 5-10 mg / L; the concentration of S-abortin is 0.5-07 mg / L; and the concentration of titanium citrate is 0.5-0.7 mg / L.

3. The garden plant growth regulator composition according to claim 1, characterized in that: The dianthus extract is derived from the stems and leaves of dianthus.

4. The garden plant growth regulator composition according to claim 1, characterized in that: The dianthus extract is prepared by the following steps: (1) Pretreatment: First, the stems and leaves of the dianthus need to be cleaned and cut; (2) Grinding: Grind the cleaned carnation stems and leaves with liquid nitrogen and grind them into powder using a grinding rod; (3) Extraction: Place the ground carnation material into an extraction container and add the extraction solvent ethanol to soak for 1 hour; (4) Centrifugation: After soaking, the plant residue is separated by centrifugation to obtain the carnation extract; (5) Concentration: The obtained dianthus extract is concentrated and dried to obtain the dianthus extract.

5. A method for preparing the garden plant growth regulator composition according to any one of claims 1 to 4, characterized in that: Prepared by the following steps: (1) Weigh naphthoxyacetic acid and 4-bromophenoxyacetic acid according to the concentration to be used, dissolve them completely in ethanol, and then add water to obtain a mixed solution A; (2) Weigh the dianthus extract, S-antibiotic and titanium citrate in the required concentrations and add them to the mixed solution A in sequence, and then add water to make up the volume to obtain a garden plant growth regulator composition.

6. Use of the garden plant growth regulator composition according to any one of claims 1 to 4 in improving the survival rate of garden plant cultivation and transplantation.

7. The use according to claim 6, characterized in that: The garden plants include boxwood, photinia, cypress, magnolia and ginkgo.

8. The use according to claim 6, characterized in that: The application comprises: after the garden plants are transplanted, 1 L of the garden plant growth regulator composition is applied per square meter.

9. The use according to claim 8, characterized in that: The garden growth regulator composition was applied twice with an interval of 20 days.

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